...and the first report comes to us via Brickset (Thanks again to Apples for the heads up!)
ToysRUs in Algonquin, IL had Series 4 Collectible Minifigures on 3/15. The price point was $2.99 USD. Chances are that Series 4 will spread like the plague through the mid-west via TRU, so check your local store for availability. The UPC code is 673419144995, and there is no limit on the number of bags you can buy.
No word yet on a 'dot sheet' for Series 4, but we will post it once it becomes available. Given the resourcefulness of most AFOL's we should see one by the weekend.
If you find these ABS All-Stars don't forget to place a pin on our Series 4 Collectible Minifigure Map!
You can follow the on-going conversation at Brickset.